Creating bronze sculptures with undercuts presents unique challenges that test the skill and patience of even experienced artists. One major difficulty lies in mold-making—undercuts complicate the removal of the mold, often requiring intricate multi-part molds or flexible materials. During casting, trapped air or uneven cooling around undercuts can lead to defects like porosity or incomplete fills. Structural integrity is another concern, as thin or deep undercuts may weaken the sculpture. Finishing these areas demands precision tools to avoid damaging delicate details. Artists often overcome these hurdles through careful planning, specialized techniques like lost-wax casting, and collaboration with foundries. Mastering undercuts unlocks dynamic forms, but it remains a demanding aspect of bronze artistry.